Good evening, welcome to this early edition of KCCI 8 news. Over the past week there have been several marijuana arrests in Des Moines. Ben Jordan joins us to explain why it's raising concern. We're here at the Des Moines Police Station where they told us they made 7 marijuana arrests in the last week and a majority of it is coming from Colorado. "SINCE THEY'VE HAD THAT WE'VE SEEN MORE OF IT, WE'VE SEEN A HIGHER QUALITY OF MARIJUANA." The Des Moines Police Department says they know it's coming from Colorado through investigations into arrests from this week. "THROUGH INTERVIEWS, TALKING WITH FOLKS WHO WANT TO WORK WITH US SO TO SPEAK. THEY INDICATE THAT IT DOES COME FROM THERE." Bret Ahroon of Starbuds Medical and Recreational Marijuana Dispensary in Denver, Colorado tells us it's not surprising that local law enforcement is finding marijuana from Colorado. 80 percent of their business comes from out of state buyers. "OH ABSOLUTELY WE GET HUNDREDS OF PEOPLE THROUGHOUT THE DAY FROM ALL OVER THE WORLD." According to Colorado State Law, out of state residents who are least 21 years old are allowed to buy a quarter ounce a day, but Ahroon says the problem is there's nothing stopping people from buying that amount at multiple dispensaries a day and leaving the state with it. "IT'S LIKE A LIQUOR STORE OR A BAR, IF ONE BAR CUTS YOU OFF AND KICKS YOU OUT, THERE'S NO WAY OF ANOTHER BAR KNOWING THAT PERSON WAS CUT OFF." Halifax says the biggest issue is the quality of marijuana they're finding is much more potent than they've usually seen the past. And he believes one of the reasons it's made its way to the metro is because of the I-80/35 connection. "THERE'S PROBABLY A LOT OF NARCOTICS TRAVELS THROUGH THOSE CORRIDORS. SO GIVEN THE FACT THAT WE'RE RIGHT ON I-80 RIGHT NEARBY, IT ISN'T THAT SURPRISING." Police say the recent rise in marijuana in the area won't change how they approach the issue. Thanks Ben.